PCF2119AU NXP [NXP Semiconductors], PCF2119AU Datasheet - Page 25

• Manufacturer Part Number: PCF2119AU
• Description: LCD controllers/drivers Single-chip LCD controller and driver
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCF2119X
Product data sheet
Fig 16. Relationship between CGRAM addresses, data and display patterns
7
0
0
0
0
0
0
0
(1) Character code bit 0 to bit 3 correspond to CGRAM address bit 3 to bit 6.
(2) CGRAM address bit 0 to bit 2 designate the character pattern line position. The 8th line is the cursor position and display is
(3) Character pattern column positions correspond to CGRAM data bit 0 to bit 4, as shown in
(4) As shown in
(5) Only bit 0 to bit 5 of the CGRAM address are set by the Set_CGRAM command. Bit 6 can be set using the Set_DDRAM
higher
order
6
bits
0
0
0
0
0
0
0
(4)
character codes
performed by logical OR with the cursor. Data in the 8th line will appear in the cursor position. Lines are numbered from 0 to 7.
CGRAM data = logic 1 corresponds to selection for display.
command in the valid address range or by using the auto-increment feature during CGRAM write. All bits from bit 0 to bit 6 can
be read using the BF_AC instruction.
(DDRAM data)
5
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
3
0
0
0
1
1
1
1
9.3 CGRAM
2
0
0
0
1
1
1
1
Figure 10
lower
(1)
order
bits
1
0
0
1
1
1
1
1
Up to 16 user defined characters may be stored in the Character Generator RAM
(CGRAM). Some CGRAM characters (see
When the icons blink option is enabled, double the number of CGRAM characters are
used since both the on and off state of an icon is defined.
The CGROM and CGRAM use a common address space, of which the first column is
reserved for the CGRAM (see
Figure 16
•
•
•
0
0
1
0
1
1
1
1
6 CGRAM characters if icons blink and both icon rows are used in the application
3 CGRAM characters if no icons blink but both icon rows are used in the application
0 CGRAM characters if no icons are driven by the icon rows
to
Figure
1
1
1
1
0
6
0
0
shows the addressing principle for the CGRAM.
higher
order
bits
0
0
0
1
1
1
1
5
(1)
15, CGRAM character patterns are selected when character code bit 4 to bit 7 are all logic 0.
(5)
1
1
1
1
0
0
1
4
CGRAM
address
All information provided in this document is subject to legal disclaimers.
(2)
3
0
1
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
1
1
2
Rev. 7 — 15 November 2010
lower
order
bits
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Figure 10
higher
order
bits
4
0
0
0
0
0
0
to
character patterns
(CGRAM data)
Figure
Figure
3
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
lower
order
bits
1
0
0
0
0
0
0
0
0
0
0
22) are also used to drive icons:
15).
0
0
0
0
0
0
0
0
0
0
0
example 1
example 2
character
character
pattern
position
pattern
cursor
Figure 10
LCD controllers/drivers
to
PCF2119x
Figure
4
1
1
1
1
1
1
1
0
1
0
1
0
1
0
0
0
© NXP B.V. 2010. All rights reserved.
character code
(CGRAM data)
3
1
0
0
1
0
0
0
0
0
1
1
0
1
0
0
0
15.
2
1
0
0
1
1
0
0
0
0
0
1
1
1
1
1
0
1
1
0
0
1
0
1
0
0
0
1
1
0
1
0
0
0
coa072
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
0
0
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